Array study of the Reunion hotspot region from the mantle transition zone to the core-mantle boundary

该项目的目的是寻找位于印度洋的rsamuunion热点和热点轨迹的证据及其深入地幔深处的程度。我们将使用最近部署的rham - rum实验（陆地和海底地震仪）的数据和其他可用数据来研究La r<s:1>海底地幔边界附近的上地幔不连续层和地震结构。研究一种很少使用的地震探头及其前兆，这些前兆来自于地幔地震不连续面的反射，我们将确定这些不连续面的深度。这反过来将提供地幔温度和该地区可能的上升流的信息。将这些新数据与其他地震波相结合，我们将对印度洋下的地幔进行前所未有的覆盖，使我们能够获得详细的、高分辨率的地震结构图像。此外，地球最底部地幔的地震结构将提供地幔底部地幔流动的信息，并将提供有关rsamuunion羽流进入深部地幔的程度的信息。

The aim of this project is to search for evidence of the Réunion hotspot and hotspot track situated in the Indian Ocean and its extent into the deep mantle. We will use data from the recently deployed RHUM-RUM experiment (land and ocean bottom seismometers) and additionally available data to study the upper mantle discontinuities as well as seismic structures near the core-mantle boundary beneath La Réunion. Studying a seldom utilised seismic probe (SP) and its precursors which originate from reflections off mantle seismic discontinuities, we will determine the depths of these discontinuities. This in turn will provide information on mantle temperatures and possible upwellings in the region. Combining these novel data with other seismic waves we will have an unprecedented coverage of the mantle beneath the Indian Ocean allowing us to derive a detailed, high-resolution picture of the seismic structures. In addition seismic structures in the lowermost Earth's mantle will provide information on mantle flow at the base of the mantle and will give information on the extent of the Réunion plume into the deep mantle.